William M Ciesla. (1994). FAO forestry paper N.120: Decline and dieback of trees and forest: a global overview. Rome: FAO.
Chicago-stil citatWilliam M Ciesla. FAO Forestry Paper N.120: Decline and Dieback of Trees and Forest: A Global Overview. Rome: FAO, 1994.
MLA-referensWilliam M Ciesla. FAO Forestry Paper N.120: Decline and Dieback of Trees and Forest: A Global Overview. Rome: FAO, 1994.
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